Pump.



R. H. ELSEY.

PUMP.

APPLICATION FILED MAR. 23. I911.

Patented May 28, .1918.

ROBERT HENRY ELSEY, 0F PRESCOTT, ARIZONA.

rune.

Specification of Letters Patent.

Patented May 28, 1918.,

Application filed March 23, 1917. Serial No. 156,885.

To all whom it may concern:

'Be it known that I, Roenn'r HENRY ELSEY, a citizen of the United States, residing at Prescott, in the county of Yavapai andState of Arizona, have invented new anduseful Improvements in Pumps, of which the following is a specification.

This invention relates to a pump and particularly pertains to a deep well pump.

it is the principal obj-ectof this invention to provide a deep well pump which is adapted to work under a load during the up and down strokes of its plunger and which will rapidly and easily elevate a column of water from a well.

Another object of this invention is to provide a deep well pump which is formed of few and easily constructed parts.

Another object of this invention is to provide a deep well pump which does not re quire the use of expensive and complicated valves but operates effectively with valves of simple construction formed of parts which may be readily interchanged at small expense.

It is a further object of this invention to provide a deep well pump mechanism which actuates its valves automatically and in synchronism with the reciprocation of the pluner.

3 Other objects will appear hereinafter.

' The invention is illustrated, by way of example, in the accompanying drawings in which:

Figure 1 is a view in vertical section illustrating the pump ready for operation.

Fig. 2 is a view in transverse section as seen on the line 2-2 of Fig. 1 viewed in the direction of the arrows and particularly discloses the construction of the plunger valve.

Fig. 3 is a view in transverse section as seen on the line 33 of Fig. l viewed in the direction of the arrows, and particularly discloses the construction of the pump cylin der valve.

Referring more particularly to the drawings, 10 indicates a pump cyl nder. This cylinder is preferably formed 1n two parts bolted together by bolts 11, 12, 13 and 14:. A bolting flange 15 is formed around the lower end of the cylinder and is adapted to receive bolts 16 which secure a pipe fitting 17. The fitting 17 is threaded in order to connect with the well casing 18. The cylinder 10 is formed with a straight bore 19 along which a hollow pump plunger 20 is adapted to reciprocate. This plunger is cylindrical in shape and is surrounded by a stuffing box 21 which prevents leakage of the water from the cylinder and around the plunger. p

The pump plunger is adapted to be reciprocated by a pump rod 22 which is connected with a suitable pumping mechanism. The reciprocation of this plunger acts to operate a plunger valve 23 and a cylinder valve 24. p

These valves are similar in construction and operate alternately to permit water to be drawn into the cylinder upon the up stroke of the plunger and to thereafter permit this volume of water to pass into the plunger upon the down stroke thereof. The plunger valve 23 is formed of a lower valve seat disk 25 which is held over the end of the plunger by means of screws 26. A series of openings 27 are formed through this disk and are adapted to permit water to flow into the chamber 28 which extends the length of the plunger and is incorporated therein. Upon the up stroke of the plunger a second disk 29 rests against the disk 25 and closes the openings therein. within 'a counter-bore 30 formed at the end of the plunger and is formed with a central bore 31. through which the water passes when the plunger is ,on its down stroke.

This disk is mounted The cylinder valve 24 is mounted at the a lower end of the cylinder and is composed of a large valve'seat disk 32 formed with a "mounted at the upper end of the plunger and is provided with a universal pipe union 38 which in turn connects with a check-valve 39. It will be understood that the pipe leading from the valve 39 is the main supply pipe and that it may be extended any length desired.

In operation, the cylinder 10 and the pipe fitting 17 are vertically mounted upon the end of the well casing 18. The pump rod 22 is then connected with a suitable pumping mechanism and the plunger caused to reciprocate within the cylinder. Upon the upstroke ofthe plunger the valve disk 29- will be held firmly against the valve disk 25 upon which it is supported, This willcause the plunger to produce suction within the pump cylinder and will raise the disk 34: from the disk 32. When these disks are separated, water will be drawn in through the openings 33 in disk 32 and the opening- 35 in disk 34,. This action will continue during the upstroke of the plunger. When the plunger starts upon its down stroke, the column 'ofwaterwithin the cylinder will be trapped, due to the pressure of the water and its'weight upon the disk 34. This disk willimmediately be lowered against "the disk 32'an'd will cause the openings 33 and 35 to be closed. the plunger continues upon its down stroke, the disk 29 will be'raised in relation to the disk 25 and the water within the cylinder will pass through openings 27 and 3lto the interior of the plunger. It will be understood that this plungeris already filled with water drawn in on the previous'down stroke and the variation in thefeflective surface pressures of the column of water within the plunger and the colunin'of water beneath the plunger will ause the water within the plunger to be ejected therefrom through the pipe'37.

It will be understood "that the stroke of the pump plunger may be varied to suit the varlouscondit'ions under. which the pump isada ted to work andthat the device. may

i beusov equally well for drawing water from mineshaftsi' "It'will thus be seen that the pump here disclosed is composed of few operative parts, auor which are simplein tlieir'construction,

may berea'dily formed, and act efi 'ectively intheir pump p emum.

'Wh le have shown the preferred con struotlon of mypump as now known to me,

' it'willb'e. understoodthat' various changes in' the combination, construction, and arran ement'fof parts may be made by those skil edfin the art without departing from the spirit of my invention.

rua m: p

o 1 Ina pump, a pump cylinder formed in two parts,'said parts meeting on diametrical longitudinal :lines and said parts being rigidly bolted together, a bolting coupling flange formed integral around the lower end of the cylinder, a tapered fitting secured to the bolting flange and having an internal thread in 1ts lower reduced end, a pipe in the internal thread; there being a counterbored chamber at the lower end of the cylinder and upper end of the fitting; a perforated valve seat disk rigidl mounted in the counter-bored chamber, an a floating valve disk loosely mounted in the counter-bored chamber upon the rigid disk and having perforations mismatching the perforations in the rigid disk so as to form an up flowing check-valve; the area of the cheek-valve capacity being equal to the capacity of the pipe.

2. In a pump, a pump cylinder, a pump plunger slidingly mounted in the cylinder and having a counter-bored chamber in its lower end, a valve seat disk rigidly mounted in said chamber, and a second vali'e disk loosely mounted in said chamber upon the rigid valve seat disk; there being mismatching perforations through said rigid VillVO seat disk and said loose valve disk so that liquid may fiow upwardly into the plunger and may not How downwardly.

3. In a pump,'a pump cylinder formed in two ieces meeting on diametrical and longitu inal lines, bolts securing the two pieces rigidly together, a pump plunger fitting closel in the pump cylinder, means forming a stul ng box around the pump plunger, a reducing fitting connected to the lower end of the pump cylinder, a pipe onnected to the reducing fitting;'there being a counterbored chamber at the lower end of the pump cylinder and a counter-bored chamber at the lowe endof the pump plunger; valve seat disks rigidly mounted in said counter-bored chambers, and valve disks loosely mounted in said counter-bored chambers above the rigid disks; there being mismatchingperforations through each rigid disk and its 00- operating loose disk so as to form up flowing check-valves equal in capacity to the flow through the pipe.

In testimony whereof. I have signed my name to this specification. I

" ROBERT HENRY ELSEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washi'ngton,'ID.0. 

